Officials from the state Department of Environmental Protection and the federal Nuclear Regulatory Commission say they’re monitoring the impacts Hurricane Sandy had on operations at the Oyster Creek nuclear power plant in Lacey Township, which Monday night suffered power outages, lost a portion of its warning alarm system, and underwent an “alert’’ due to rising water levels.

Exelon’s Oyster Creek reactor was off-line prior to Sandy for previously scheduled refueling and maintenance operations. The plant is temporarily being powered by backup diesel generators and a combustion turbine engine providing energy for water pumps that cool the fuel stored in the reactor until normal power sources are restored.

According to a press release from state officials, the “alert’’ occurred at 8:45 p.m. due to rising water levels in its canal that provides cooling water to the plant’s intake system. The rising levels were the result of high tides, wind direction and storm surge caused by the storm. The notification of an “alert’’ is the second lowest of four NRC action levels.

The NRC in a statement noted that Oyster Creek remains in “safe condition,’’ with agency inspectors on site.

In addition, due to the power outages, Oyster Creek also reported a loss of operability of 21 of its warning sirens in its service area. Even though some sirens are out, there are other warning systems in place, officials said.

State officials say they have highly trained staff ready to initiate an effective response to any nuclear power plant issue.